(TXT) View Source
       
       # PACKARD BELL
       
          486 MODEL 3X3 SERIES, 4X4 SERIES
       
          Device Type      Mainboard                                     
          Processor        80486SX/80486SX2/80486DX/80486DX2/P24T        
          Processor Speed  25/33/50(internal)/66(internal)MHz            
          Chip Set         OPTI                                          
          Video Chip Set   Cirrus Logic                                  
          Maximum Onboard  64MB                                          
          Memory           
          Maximum Video    Unidentified                                  
          Memory           
          Cache            128/512KB                                     
          BIOS             Phoenix                                       
          Dimensions       254mm x 218mm                                 
          I/O Options      32-bit VESA local bus slot, floppy drive      
                           interface, IDE interfaces (2), parallel port, 
                           PS/2 mouse port, serial ports (2), VGA        
                           feature connector, VGA port, riser slot       
          NPU Options      None                                          
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose           | Location |
          |------------------+----------+-------------------+----------|
          | PS/2 mouse port  |    J2    | IDE interface     |   J23    |
          |------------------+----------+-------------------+----------|
          | VGA port         |    J3    | IDE interface     |   J24    |
          |------------------+----------+-------------------+----------|
          | Parallel port    |    J5    | Front panel       |   J34    |
          |                  |          | connector         |          |
          |------------------+----------+-------------------+----------|
          | Serial port 1    |    J6    | Keylock           |   J35    |
          |------------------+----------+-------------------+----------|
          | VGA feature      |   J14    | Chassis fan power |   J38    |
          | connector        |          |                   |          |
          |------------------+----------+-------------------+----------|
          | Floppy drive     |   J21    | Riser slot        |   SL1    |
          | interface        |          |                   |          |
          |------------------+----------+-------------------+----------|
          | Modem connector  |   J22    | 32-bit VESA local |   SL2    |
          |                  |          | bus slot          |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | » | Factory configured - do not     |  J4   | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Monitor type select color       |  J8   |    Closed    |
          |---+---------------------------------+-------+--------------|
          |   | Monitor type select monochrome  |  J8   |     Open     |
          |---+---------------------------------+-------+--------------|
          | » | VGA IRQ9 disabled               |  J9   |     Open     |
          |---+---------------------------------+-------+--------------|
          |   | VGA IRQ9 enabled                |  J9   |    Closed    |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  J10  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  J11  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Boot block normal operation     |  J17  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Boot block enabled              |  J17  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | Parity disabled                 |  J18  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Parity enabled                  |  J18  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | On board video enabled          |  J19  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | On board video disabled         |  J19  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | On board I/O enabled            |  J20  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | On board I/O disabled           |  J20  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  J29  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | On board speaker enabled        |  J30  |  Pins 3 & 4  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | On board speaker disabled       |  J30  |     Open     |
          |---+---------------------------------+-------+--------------|
          | » | LDEV# enabled                   |  J33  |    Closed    |
          |---+---------------------------------+-------+--------------|
          |   | LDEV# disabled                  |  J33  |     Open     |
          |---+---------------------------------+-------+--------------|
          | » | Speaker enabled                 |  J36  |  Pins 3 & 4  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Speaker disabled                |  J36  |     Open     |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  J39  |     Open     |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  J40  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  J41  | Unidentified |
          |   | alter                           |       |              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     SIMM CONFIGURATION                     |
          |------------------------------------------------------------|
          |   Size   |      Bank 0      |     Bank 1      |   Bank 2   |
          |----------+------------------+-----------------+------------|
          |   1MB    |  (1) 256K x 36   |      None       |    4MB     |
          |----------+------------------+-----------------+------------|
          |   2MB    |  (1) 512K x 36   |      None       |    4MB     |
          |----------+------------------+-----------------+------------|
          |   2MB    |  (1) 256K x 36   |  (1) 256K x 36  |    4MB     |
          |----------+------------------+-----------------+------------|
          |   3MB    |  (1) 512K x 36   |  (1) 256K x 36  |    4MB     |
          |----------+------------------+-----------------+------------|
          |   4MB    |   (1) 1M x 36    |      None       |    4MB     |
          |----------+------------------+-----------------+------------|
          |   4MB    |  (1) 512K x 36   |  (1) 512K x 36  |    4MB     |
          |----------+------------------+-----------------+------------|
          |   5MB    |   (1) 1M x 36    |  (1) 256K x 36  |    4MB     |
          |----------+------------------+-----------------+------------|
          |   6MB    |   (1) 1M x 36    |  (1) 512K x 36  |    4MB     |
          |----------+------------------+-----------------+------------|
          |   8MB    |   (1) 2M x 36    |      None       |    4MB     |
          |----------+------------------+-----------------+------------|
          |   8MB    |   (1) 1M x 36    |   (1) 1M x 36   |    4MB     |
          |----------+------------------+-----------------+------------|
          |   9MB    |   (1) 2M x 36    |  (1) 256K x 36  |    4MB     |
          |----------+------------------+-----------------+------------|
          |   10MB   |   (1) 2M x 36    |  (1) 512K x 36  |    4MB     |
          |----------+------------------+-----------------+------------|
          |   12MB   |   (1) 2M x 36    |   (1) 1M x 36   |    4MB     |
          |----------+------------------+-----------------+------------|
          |   12MB   |   (1) 1M x 36    |   (1) 2M x 36   |    4MB     |
          |----------+------------------+-----------------+------------|
          |   16MB   |   (1) 4M x 36    |      None       |    4MB     |
          |----------+------------------+-----------------+------------|
          |   16MB   |   (1) 2M x 36    |   (1) 2M x 36   |    4MB     |
          |----------+------------------+-----------------+------------|
          |   17MB   |   (1) 4M x 36    |  (1) 256K x 36  |    4MB     |
          |----------+------------------+-----------------+------------|
          |   18MB   |   (1) 4M x 36    |  (1) 512K x 36  |    4MB     |
          |----------+------------------+-----------------+------------|
          |   20MB   |   (1) 4M x 36    |   (1) 1M x 36   |    4MB     |
          |----------+------------------+-----------------+------------|
          |   24MB   |   (1) 4M x 36    |   (1) 2M x 36   |    4MB     |
          |----------+------------------+-----------------+------------|
          |   32MB   |   (1) 8M x 36    |      None       |    4MB     |
          |----------+------------------+-----------------+------------|
          |   32MB   |   (1) 4M x 36    |   (1) 4M x 36   |    4MB     |
          |----------+------------------+-----------------+------------|
          |   33MB   |   (1) 8M x 36    |  (1) 256K x 36  |    4MB     |
          |----------+------------------+-----------------+------------|
          |   34MB   |   (1) 8M x 36    |  (1) 512K x 36  |    4MB     |
          |----------+------------------+-----------------+------------|
          |   36MB   |   (1) 8M x 36    |   (1) 1M x 36   |    4MB     |
          |----------+------------------+-----------------+------------|
          |   40MB   |   (1) 8M x 36    |   (1) 2M x 36   |    4MB     |
          |----------+------------------+-----------------+------------|
          |   48MB   |   (1) 8M x 36    |   (1) 4M x 36   |    4MB     |
          |----------+------------------+-----------------+------------|
          |   64MB   |   (1) 8M x 36    |   (1) 8M x 36   |    4MB     |
          |------------------------------------------------------------|
          |      Note: If J37 is set to enabled, add 4 MB to the size  |
          |      column to get correct memory size. If 64MB is         |
          |      installed, J37 must be disabled.                      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               ON BOARD MEMORY CONFIGURATION                |
          |------------------------------------------------------------|
          |              Setting              |          J37           |
          |-----------------------------------+------------------------|
          | »    |          Enabled           |          Open          |
          |------+----------------------------+------------------------|
          |      |          Disabled          |         Closed         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |      TAG      |
          |------------+---------------+---------------+---------------|
          |   128KB    |  (4) 32K x 8  |     None      | Unidentified  |
          |------------+---------------+---------------+---------------|
          |   512KB    |  (4) 64K x 8  |  (4) 64K x 8  | Unidentified  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |            Size            |              J26              |
          |----------------------------+-------------------------------|
          |           128KB            |             Open              |
          |----------------------------+-------------------------------|
          |           512KB            |   Pins 1 & 2, 3 & 4 closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 VIDEO MEMORY CONFIGURATION                 |
          |------------------------------------------------------------|
          | Note: The size of the video memory is unidentified.        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          |           Speed            |              J25              |
          |----------------------------+-------------------------------|
          |           25MHz            |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |           33MHz            |       Pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |           50iMHz           |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |           66iMHz           |       Pins 2 & 3 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CPU TYPE SELECTION                     |
          |------------------------------------------------------------|
          |            Type            |              J31              |
          |----------------------------+-------------------------------|
          |          80486SX           |       Pins 5 & 6 closed       |
          |----------------------------+-------------------------------|
          |          80486SX2          |   Pins 1 & 2, 3 & 4 closed    |
          |----------------------------+-------------------------------|
          |          80486DX           |   Pins 1 & 2, 3 & 4 closed    |
          |----------------------------+-------------------------------|
          |          80486DX2          |   Pins 1 & 2, 3 & 4 closed    |
          |----------------------------+-------------------------------|
          |            P24T            |   Pins 1 & 2, 3 & 4 closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CPU TYPE SELECTION                     |
          |------------------------------------------------------------|
          |            Type             |             J28              |
          |-----------------------------+------------------------------|
          |         SL enhanced         |      Pins 1 & 2 closed       |
          |-----------------------------+------------------------------|
          |       Non SL enhanced       |      Pins 2 & 3 closed       |
          |-----------------------------+------------------------------|
          |            P24T             |      Pins 1 & 2 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU VOLTAGE SELECTION                    |
          |------------------------------------------------------------|
          |          Voltage           |              J32              |
          |----------------------------+-------------------------------|
          |   |          3.3v          |   Pins 1 & 3, 2 & 4 closed    |
          |---+------------------------+-------------------------------|
          | » |           5v           |   Pins 3 & 5, 4 & 6 closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   DMA CHANNEL SELECTION                    |
          |------------------------------------------------------------|
          |     Channel      |        J15         |        J16         |
          |------------------+--------------------+--------------------|
          | »  |      1      | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
          |----+-------------+--------------------+--------------------|
          |    |      3      | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
          +------------------------------------------------------------+